Tensioning device for a traction mechanism drive of an internal combustion engine
US-9182015-B2 · Nov 10, 2015 · US
Clamping device for a belt drive
US9416853B2 · US · B2
| Field | Value |
|---|---|
| Publication number | US-9416853-B2 |
| Application number | US-201214364481-A |
| Country | US |
| Kind code | B2 |
| Filing date | Dec 5, 2012 |
| Priority date | Dec 15, 2011 |
| Publication date | Aug 16, 2016 |
| Grant date | Aug 16, 2016 |
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- Title
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- Abstract
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- First independent claim
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Abstract
Official abstract text for this publication.
A clamping device ( 2 ) for a starter generator belt drive of an internal combustion engine. The clamping device includes a tensioner housing ( 8 ), a tensioning arm ( 17 ) mounted movably therein, and two idlers ( 6, 7 ), one of which is mounted to the tensioning arm and the other of which is mounted to the tensioner housing ( 8 ) in a stationary manner. A spring component which generates the pre-load force includes two helical compression springs ( 20 a, 20 b ) connected in series, the facing spring ends ( 23 a, 23 b ) of which are separated by an intermediate piece ( 24 ) mounted in the tensioner housing in a sliding manner. The tensioning arm has a pin projection ( 28 ), which extends through the helical compression springs running inside the tensioning arm and which is mounted in the intermediate piece in a sliding manner.
First claim
Opening claim text (preview).
The invention claimed is: 1. Tensioning device for a belt drive that has an endlessly circulating belt, an electric machine with a drive wheel and at least one additional drive wheel that is in drive connection with the drive wheel via the belt, wherein the tensioning device comprises: a tensioner housing supported on the electric machine to pivot about an axis of the drive wheel, a tensioning arm movably supported in the tensioner housing, two tensioning rollers that apply a biasing force on the belt in front of and behind the drive wheel in a circulating direction of the belt, wherein one of the tensioning rollers is supported on the tensioning arm and the other of the tensioning rollers is supported fixed in place on the tensioner housing, and a spring component that generates the biasing force and having spring ends clamped on one side between the tensioner housing and on the other side on the tensioning arm, the spring component comprises two helical compression springs that are connected in series and having facing spring ends separated by an intermediate piece slidably supported in the tensioner housing, the tensioning arm has a pin projection that passes through the helical compression spring and is slidably supported in the intermediate piece. 2. Tensioning device according to claim 1 , wherein the pin projection has a circular arc-shaped construction and the helical compression springs are formed as bow springs. 3. Tensioning device according to claim 2 , wherein the bow springs are identical parts.
Assignees
Inventors
Classifications
- F16H7/1281Primary
where the axis of the pulley moves along a substantially circular path · CPC title
- F02B67/06Primary
driven by means of chains, belts, or like endless members · CPC title
Compression coil springs · CPC title
Two or more finally actuated members · CPC title
Circular path · CPC title
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Frequently asked questions
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- What does patent US9416853B2 cover?
- A clamping device ( 2 ) for a starter generator belt drive of an internal combustion engine. The clamping device includes a tensioner housing ( 8 ), a tensioning arm ( 17 ) mounted movably therein, and two idlers ( 6, 7 ), one of which is mounted to the tensioning arm and the other of which is mounted to the tensioner housing ( 8 ) in a stationary manner. A spring component which generates the …
- Who is the assignee on this patent?
- Schaeffler Technologies Ag
- What technology area does this patent fall under?
- Primary CPC classification F16H7/1281. Mapped technology areas include Mechanical Engineering.
- When was this patent published?
- Publication date Tue Aug 16 2016 00:00:00 GMT+0000 (Coordinated Universal Time) (B2). Legal status and post-grant events are not shown on this page.
- What related patents are in patentsdb?
- We list 3 related publications on this page (citations in our corpus or others sharing the same primary CPC).